./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:15:02,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:15:02,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:15:02,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:15:02,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:15:02,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:15:02,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:15:02,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:15:02,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:15:02,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:15:02,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:15:02,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:15:02,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:15:02,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:15:02,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:15:02,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:15:02,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:15:02,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:15:02,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:15:02,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:15:02,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:15:02,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:15:02,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:15:02,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:15:02,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:15:02,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:15:02,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:15:02,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:15:02,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:15:02,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:15:02,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:15:02,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:15:02,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:15:02,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:15:02,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:15:02,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:15:02,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:15:02,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:15:02,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:15:02,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:15:02,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:15:02,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 17:15:02,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:15:02,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:15:02,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:15:02,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:15:02,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:15:02,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:15:02,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:15:02,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:15:02,309 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:15:02,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:15:02,310 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:15:02,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:15:02,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:15:02,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:15:02,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:15:02,311 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:15:02,311 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:15:02,311 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:15:02,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:15:02,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:15:02,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:15:02,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:15:02,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:15:02,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:15:02,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:15:02,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:02,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:15:02,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:15:02,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:15:02,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:15:02,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:15:02,314 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:15:02,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:15:02,314 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-25 17:15:02,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:15:02,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:15:02,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:15:02,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:15:02,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:15:02,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 17:15:05,567 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:15:05,883 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:15:05,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 17:15:05,891 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/048e4aa15/1729f28c6d5245fbba08c7a9585c1b2b/FLAG185c958ae [2022-11-25 17:15:05,907 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/048e4aa15/1729f28c6d5245fbba08c7a9585c1b2b [2022-11-25 17:15:05,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:15:05,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:15:05,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:05,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:15:05,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:15:05,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:05" (1/1) ... [2022-11-25 17:15:05,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf65239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:05, skipping insertion in model container [2022-11-25 17:15:05,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:05" (1/1) ... [2022-11-25 17:15:05,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:15:05,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:06,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,133 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,144 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,160 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,161 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,162 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,163 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:06,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:06,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 17:15:06,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:06,212 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-25 17:15:06,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72594063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:06, skipping insertion in model container [2022-11-25 17:15:06,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:06,214 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 17:15:06,216 INFO L158 Benchmark]: Toolchain (without parser) took 304.60ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 111.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:15:06,216 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:15:06,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.04ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 111.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:15:06,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.04ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 111.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 215]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:15:08,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:15:08,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:15:08,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:15:08,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:15:08,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:15:08,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:15:08,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:15:08,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:15:08,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:15:08,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:15:08,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:15:08,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:15:08,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:15:08,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:15:08,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:15:08,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:15:08,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:15:08,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:15:08,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:15:08,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:15:08,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:15:08,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:15:08,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:15:08,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:15:08,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:15:08,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:15:08,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:15:08,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:15:08,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:15:08,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:15:08,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:15:08,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:15:08,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:15:08,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:15:08,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:15:08,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:15:08,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:15:08,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:15:08,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:15:08,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:15:08,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 17:15:08,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:15:08,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:15:08,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:15:08,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:15:08,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:15:08,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:15:08,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:15:08,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:15:08,960 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:15:08,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:15:08,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:15:08,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:15:08,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:15:08,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:15:08,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:15:08,962 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:15:08,962 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:15:08,962 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:15:08,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:15:08,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:15:08,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:15:08,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:15:08,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:15:08,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:15:08,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:15:08,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:15:08,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:15:08,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:08,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:15:08,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:15:08,966 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:15:08,966 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:15:08,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:15:08,967 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:15:08,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:15:08,967 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:15:08,968 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2022-11-25 17:15:09,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:15:09,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:15:09,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:15:09,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:15:09,423 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:15:09,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 17:15:12,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:15:12,880 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:15:12,881 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2022-11-25 17:15:12,889 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/b33a761fd/e84c56213d1b4365a406044a0ca0f85a/FLAG427d08a07 [2022-11-25 17:15:12,904 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/data/b33a761fd/e84c56213d1b4365a406044a0ca0f85a [2022-11-25 17:15:12,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:15:12,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:15:12,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:12,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:15:12,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:15:12,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:12" (1/1) ... [2022-11-25 17:15:12,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19568b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:12, skipping insertion in model container [2022-11-25 17:15:12,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:12" (1/1) ... [2022-11-25 17:15:12,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:15:12,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:13,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,189 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,202 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,203 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,219 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,257 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,258 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,266 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 17:15:13,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:13,328 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 17:15:13,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:15:13,362 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,432 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 17:15:13,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:13,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:15:13,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:15:13,527 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:15:13,564 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c[6687,6700] [2022-11-25 17:15:13,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:15:13,594 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:15:13,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13 WrapperNode [2022-11-25 17:15:13,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:15:13,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:13,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:15:13,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:15:13,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,665 INFO L138 Inliner]: procedures = 28, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 446 [2022-11-25 17:15:13,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:15:13,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:15:13,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:15:13,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:15:13,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:15:13,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:15:13,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:15:13,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:15:13,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (1/1) ... [2022-11-25 17:15:13,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:15:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:15:13,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:15:13,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:15:13,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:15:13,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:15:13,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:15:13,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 17:15:13,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:15:13,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:15:13,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:15:13,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:15:13,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 17:15:13,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 17:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 17:15:13,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 17:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:15:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:15:13,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:15:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:15:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 17:15:13,824 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:15:14,003 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:15:14,005 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:15:15,261 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:15:15,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:15:15,595 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-25 17:15:15,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:15 BoogieIcfgContainer [2022-11-25 17:15:15,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:15:15,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:15:15,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:15:15,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:15:15,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:15:12" (1/3) ... [2022-11-25 17:15:15,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4653706a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:15:15, skipping insertion in model container [2022-11-25 17:15:15,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:13" (2/3) ... [2022-11-25 17:15:15,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4653706a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:15:15, skipping insertion in model container [2022-11-25 17:15:15,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:15" (3/3) ... [2022-11-25 17:15:15,612 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2022-11-25 17:15:15,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:15:15,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-11-25 17:15:15,637 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:15:15,817 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 17:15:15,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 394 transitions, 820 flow [2022-11-25 17:15:16,097 INFO L130 PetriNetUnfolder]: 37/390 cut-off events. [2022-11-25 17:15:16,098 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 17:15:16,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 390 events. 37/390 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 457 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2022-11-25 17:15:16,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 394 transitions, 820 flow [2022-11-25 17:15:16,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 361 places, 385 transitions, 794 flow [2022-11-25 17:15:16,131 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:15:16,152 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 385 transitions, 794 flow [2022-11-25 17:15:16,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 385 transitions, 794 flow [2022-11-25 17:15:16,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 385 transitions, 794 flow [2022-11-25 17:15:16,254 INFO L130 PetriNetUnfolder]: 37/385 cut-off events. [2022-11-25 17:15:16,255 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-25 17:15:16,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 385 events. 37/385 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 455 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 331. Up to 8 conditions per place. [2022-11-25 17:15:16,262 INFO L119 LiptonReduction]: Number of co-enabled transitions 10000 [2022-11-25 17:16:34,953 WARN L233 SmtUtils]: Spent 8.17s on a formula simplification. DAG size of input: 163 DAG size of output: 160 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:16:44,632 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 172 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:16:46,875 INFO L134 LiptonReduction]: Checked pairs total: 13061 [2022-11-25 17:16:46,876 INFO L136 LiptonReduction]: Total number of compositions: 458 [2022-11-25 17:16:46,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:16:46,896 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48797767, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:16:46,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-25 17:16:46,901 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 17:16:46,901 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:16:46,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:16:46,902 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:16:46,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-25 17:16:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash 64753, now seen corresponding path program 1 times [2022-11-25 17:16:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:16:46,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274821381] [2022-11-25 17:16:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:46,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:16:46,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:16:46,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:16:46,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:16:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:16:47,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:16:47,533 INFO L321 Elim1Store]: treesize reduction 138, result has 28.5 percent of original size [2022-11-25 17:16:47,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 20 treesize of output 62 [2022-11-25 17:16:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:47,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:16:47,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:16:47,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274821381] [2022-11-25 17:16:47,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274821381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:47,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:47,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:16:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442764347] [2022-11-25 17:16:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:47,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:47,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:16:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:47,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:48,088 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 852 [2022-11-25 17:16:48,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:48,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:16:48,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 852 [2022-11-25 17:16:48,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:17:15,034 INFO L130 PetriNetUnfolder]: 110089/141191 cut-off events. [2022-11-25 17:17:15,035 INFO L131 PetriNetUnfolder]: For 658/658 co-relation queries the response was YES. [2022-11-25 17:17:15,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285318 conditions, 141191 events. 110089/141191 cut-off events. For 658/658 co-relation queries the response was YES. Maximal size of possible extension queue 10408. Compared 830559 event pairs, 93490 based on Foata normal form. 0/26095 useless extension candidates. Maximal degree in co-relation 134484. Up to 70599 conditions per place. [2022-11-25 17:17:16,270 INFO L137 encePairwiseOnDemand]: 839/852 looper letters, 149 selfloop transitions, 8 changer transitions 0/157 dead transitions. [2022-11-25 17:17:16,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 157 transitions, 676 flow [2022-11-25 17:17:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:17:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:17:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1099 transitions. [2022-11-25 17:17:16,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42996870109546165 [2022-11-25 17:17:16,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1099 transitions. [2022-11-25 17:17:16,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1099 transitions. [2022-11-25 17:17:16,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:17:16,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1099 transitions. [2022-11-25 17:17:16,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:16,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 852.0) internal successors, (3408), 4 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:16,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 852.0) internal successors, (3408), 4 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:16,327 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 188 flow. Second operand 3 states and 1099 transitions. [2022-11-25 17:17:16,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 157 transitions, 676 flow [2022-11-25 17:17:16,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 157 transitions, 644 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-25 17:17:16,887 INFO L231 Difference]: Finished difference. Result has 82 places, 88 transitions, 238 flow [2022-11-25 17:17:16,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=852, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=82, PETRI_TRANSITIONS=88} [2022-11-25 17:17:16,893 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, -5 predicate places. [2022-11-25 17:17:16,894 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 238 flow [2022-11-25 17:17:16,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:16,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:17:16,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:17:16,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-25 17:17:17,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:17:17,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2022-11-25 17:17:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:17:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash 64752, now seen corresponding path program 1 times [2022-11-25 17:17:17,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:17:17,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251231145] [2022-11-25 17:17:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:17:17,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:17:17,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:17:17,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:17:17,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4c6b2f-dda9-4e25-8916-4d810b9ef847/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:17:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:17:17,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:17:17,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:17:17,398 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-11-25 17:17:17,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 70 [2022-11-25 17:17:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:17:17,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:17:17,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:17:17,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251231145] [2022-11-25 17:17:17,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251231145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:17:17,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:17:17,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:17:17,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947798646] [2022-11-25 17:17:17,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:17:17,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:17:17,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:17:17,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:17:17,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:17:17,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 852 [2022-11-25 17:17:17,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:17:17,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:17:17,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 852 [2022-11-25 17:17:17,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand